/* Null Bond — shared styles */
@font-face {
  font-family: "Inter";
  src: url("/fonts/inter.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/jetbrains-mono.woff2") format("woff2");
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #e2ecf5;
  --bg-2: #ecf3f9;
  --bg-deep: #d3e2ef;
  --ink: #0b1420;
  --ink-2: #344456;
  --muted: #66778b;
  --label: #1c5d87;
  --line: rgba(20, 46, 78, 0.12);
  --line-2: rgba(20, 46, 78, 0.2);
  --glass: rgba(246, 250, 254, 0.74);
  --glass-2: rgba(246, 250, 254, 0.56);
  --card: rgba(244, 248, 252, 0.82);
  --cyan-1: #a3effd;
  --cyan-2: #62d8f3;
  --cyan-3: #3cc3e6;
  --cyan-ink: #063041;
  --ok: #0d8f6f;
  --bad: #c4384b;
  --radius: 22px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 18px 50px -24px rgba(16, 48, 84, 0.35);
  --shadow-sm: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 8px 24px -14px rgba(16, 48, 84, 0.35);
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--sans);
  font-feature-settings: "cv11", "ss01", "ss03";
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 620px at 50% -8%, rgba(255, 255, 255, 0.75), transparent 70%),
    radial-gradient(900px 700px at 100% 30%, rgba(196, 220, 240, 0.7), transparent 70%),
    radial-gradient(900px 700px at 0% 70%, rgba(205, 226, 243, 0.75), transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 40%, var(--bg-deep));
  background-attachment: fixed;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.38) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.38) 1px, transparent 1px);
  background-size: 112px 112px;
  -webkit-mask-image: radial-gradient(900px 600px at 50% 20%, #000 10%, transparent 75%);
  mask-image: radial-gradient(900px 600px at 50% 20%, #000 10%, transparent 75%);
  z-index: 0;
}
main, header, footer { position: relative; z-index: 1; }

a { color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: rgba(98, 216, 243, 0.45); }
:focus-visible { outline: 2px solid var(--cyan-3); outline-offset: 3px; border-radius: 8px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); }

/* ---------- nav ---------- */
.nav-shell { position: sticky; top: 14px; z-index: 50; padding: 0 var(--gutter); }
.nav {
  max-width: 1080px;
  margin: 14px auto 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 8px 14px;
  border-radius: 20px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 650; letter-spacing: -0.01em; font-size: 16.5px; white-space: nowrap; }
.brand-mark { width: 32px; height: 32px; flex: none; border-radius: 10px; box-shadow: 0 6px 14px -8px rgba(30, 140, 180, 0.8); }
.nav-links { display: flex; gap: 2px; margin: 0 auto; list-style: none; padding: 0; }
.nav-links a {
  display: block;
  padding: 8px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink-2);
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
}
.nav-links a:hover { color: var(--ink); background: rgba(20, 46, 78, 0.06); }
.nav-links a.active { color: var(--ink); background: rgba(20, 46, 78, 0.09); box-shadow: inset 0 0 0 1px rgba(20, 46, 78, 0.06); }
.nav-right { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-links + .nav-right { margin-left: 0; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 999px;
  display: grid; place-items: center;
  background: var(--ink); color: #fff; text-decoration: none;
  transition: transform 0.2s;
}
.icon-btn:hover { transform: translateY(-1px); }
.icon-btn svg { width: 16px; height: 16px; }
.menu-btn { display: none; background: transparent; color: var(--ink); border: 1px solid var(--line-2); cursor: pointer; }
.mobile-menu { display: none; }

@media (max-width: 1000px) {
  .nav-links { display: none; }
  .menu-btn { display: grid; }
  .nav-right { margin-left: auto; }
  .nav-links + .nav-right { margin-left: auto; }
  .mobile-menu.open {
    display: grid;
    max-width: 1080px;
    margin: 8px auto 0;
    padding: 8px;
    gap: 2px;
    border-radius: 18px;
    background: var(--glass);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }
  .mobile-menu a { padding: 11px 14px; border-radius: 12px; text-decoration: none; color: var(--ink-2); }
  .mobile-menu a:hover { background: rgba(20, 46, 78, 0.06); color: var(--ink); }
}
@media (max-width: 520px) {
  .nav .btn-launch { padding: 0 14px; }
  .brand span { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  --h: 46px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--h); padding: 0 22px;
  border-radius: 999px; border: 0;
  font: 600 15px/1 var(--sans); letter-spacing: -0.005em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s, opacity 0.18s;
}
.btn:active { transform: translateY(1px); }
.btn-cyan {
  color: var(--cyan-ink);
  background: linear-gradient(180deg, var(--cyan-1), var(--cyan-2) 55%, var(--cyan-3));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 -2px 0 rgba(0, 80, 110, 0.12) inset, 0 12px 26px -12px rgba(30, 160, 200, 0.85);
}
.btn-cyan:hover { transform: translateY(-1px); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 -2px 0 rgba(0, 80, 110, 0.12) inset, 0 16px 30px -12px rgba(30, 160, 200, 0.95); }
.btn-ghost {
  color: var(--ink);
  background: rgba(250, 252, 255, 0.7);
  box-shadow: inset 0 0 0 1px var(--line-2), var(--shadow-sm);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.95); transform: translateY(-1px); }
.btn-dark { color: var(--cyan-1); background: var(--ink); box-shadow: 0 12px 26px -14px rgba(0, 0, 0, 0.7); }
.btn-dark:hover { transform: translateY(-1px); }
.btn-sm { --h: 38px; padding: 0 16px; font-size: 14px; }
.btn[disabled], .btn.is-disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn svg { width: 16px; height: 16px; }

/* ---------- small parts ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 12px/1 var(--mono); letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--label);
}
.pill {
  display: inline-flex; align-items: center;
  padding: 8px 13px; border-radius: 999px;
  font: 600 11.5px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--label);
  background: rgba(250, 253, 255, 0.85);
  box-shadow: inset 0 0 0 1px var(--line-2), 0 6px 16px -12px rgba(16, 48, 84, 0.4);
}
.ca {
  display: inline-flex; align-items: center; gap: 10px;
  max-width: 100%;
  padding: 11px 16px; border-radius: 14px;
  font: 500 12.5px/1.2 var(--mono); color: var(--ink-2);
  background: rgba(248, 251, 255, 0.6);
  border: 1px dashed var(--line-2);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.ca:hover { background: rgba(255, 255, 255, 0.9); border-color: rgba(28, 93, 135, 0.4); }
.ca b { color: var(--label); font-weight: 700; letter-spacing: 0.08em; flex: none; }
.ca span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.ca.is-empty { cursor: default; }

.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 100;
  transform: translate(-50%, 20px); opacity: 0;
  padding: 11px 18px; border-radius: 999px;
  background: var(--ink); color: #fff; font-size: 14px; font-weight: 500;
  box-shadow: 0 16px 40px -14px rgba(0, 0, 0, 0.6);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -0.04em; line-height: 1.02; }
h3 { letter-spacing: -0.02em; line-height: 1.25; font-size: 19px; font-weight: 600; }
h1, h2 { text-wrap: balance; }
p { margin: 0; }

/* ---------- footer ---------- */
.site-footer {
  margin-top: 70px;
  padding: 64px 0 40px;
  background: rgba(196, 214, 232, 0.62);
  border-top-left-radius: 48px; border-top-right-radius: 48px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, minmax(120px, 0.6fr)); gap: 32px; }
.footer-brand { display: flex; align-items: center; gap: 12px; font: 700 14px/1 var(--mono); letter-spacing: 0.32em; text-decoration: none; }
.footer-grid p { color: var(--ink-2); font-size: 14.5px; margin-top: 16px; max-width: 330px; }
.footer-col h4 { margin: 0 0 16px; font: 600 11.5px/1 var(--mono); letter-spacing: 0.2em; color: var(--muted); text-transform: uppercase; }
.footer-col a { display: block; text-decoration: none; color: var(--ink); font-size: 15px; margin-bottom: 10px; }
.footer-col a:hover { color: var(--label); }
.footer-base { margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

/* ---------- reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- prose pages (whitepaper / legal) ---------- */
.doc { max-width: 760px; margin: 0 auto; padding: 72px var(--gutter) 40px; }
.doc .pill { margin-bottom: 22px; }
.doc h1 { font-size: clamp(38px, 6vw, 60px); margin-bottom: 18px; }
.doc .lede { font-size: 18.5px; color: var(--ink-2); margin-bottom: 36px; }
.doc h2 { font-size: 27px; letter-spacing: -0.03em; margin: 52px 0 14px; line-height: 1.15; }
.doc h3 { margin: 30px 0 10px; }
.doc p, .doc li { color: var(--ink-2); font-size: 16.5px; line-height: 1.7; }
.doc p + p { margin-top: 14px; }
.doc ul, .doc ol { padding-left: 22px; margin: 12px 0; }
.doc li + li { margin-top: 6px; }
.doc code { font-family: var(--mono); font-size: 0.86em; background: rgba(255, 255, 255, 0.7); padding: 2px 6px; border-radius: 6px; box-shadow: inset 0 0 0 1px var(--line); }
.doc pre {
  font: 13.5px/1.65 var(--mono); color: #d6ecf7;
  background: #0b1420; padding: 20px 22px; border-radius: 16px; overflow-x: auto; margin: 16px 0;
}
.doc pre code { background: none; box-shadow: none; padding: 0; color: inherit; font-size: inherit; }
.doc table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
.doc th, .doc td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-2); }
.doc th { font: 600 11.5px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.doc .callout { margin: 22px 0; padding: 18px 20px; border-radius: 16px; background: var(--card); box-shadow: var(--shadow-sm); border: 1px solid rgba(255, 255, 255, 0.8); }
.doc .meta { font: 500 13px/1 var(--mono); color: var(--muted); margin-bottom: 8px; }
.toc { display: grid; gap: 6px; padding: 18px 20px; border-radius: 16px; background: var(--glass-2); box-shadow: inset 0 0 0 1px var(--line); margin-bottom: 20px; }
.toc a { text-decoration: none; color: var(--ink-2); font-size: 15px; }
.toc a:hover { color: var(--label); }